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WILLIAM SUIHEBLAND, or SEVEN MILE, OHIO. Letters Patent No. 74,446, dated February 11, 1868.

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Be it known that I, WILLIAM H. SUTHERLAND, of Seven Mile, in the county of Butler, in'the State of Ohio, have invented a new and improved Mode of Poising and Locking Window-Sash; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is an elevation in perspective of the window-frame, and the upper and lower flights of sash in position and closed.- I p Figure 2 is a perspective elevation of the upper flight of sash with rollers and rack attached; and

Figure 3 is a perspective view of the locker; and a section of the sash to which it is adapted. V

The nature of my invention consists in providingQby means of a locker, with inclined tongue and rack, with inclined cogs, for the poising and locking, at any'elevation or depression, of either or both flights of sash, and this without weights, pulleys, cords, or springs of any kind. The arrangement is eminently adapted to the sash and blinds of railroad-car windows. 1

To enable others skilled in the art to make andusc myinvention, I will proceed to describe its construction and operation. I

I construct'my window-frame in the usual manner, but without boxes, as shown at fig. 1, in which I) 6 rep resent the jams, a the head, and c the sill of the frame; The sash are also constructed in the usual manner, as seen in same figure, in whichf, g, and 01, respectively, represent the top rail, stile, and meeting-rail of the upper flight, and ol, e e, and m themeeting-rail,stiles, and bottom rail of the lower flight. In same figure it It show the flanges of the friction-rollers, to be hereafterexplaiped; iv, the locker-plate; n, the escutcheon; and k, the knob of the locker-shaft.

I n fig. 2,1", g, and d, respectively, represent the upper rail, stile, and meeting-rail of the upper flight of sash. The stile g is grooved on its edge to the depth of threc-eighths or four-eighths of an inch. In this groove is inserted and screwed the metallic rack, whose cogs incline upward, from base to point, at an angle of from fifteen to twenty degrees.v This rack is seen at same figure at Z I. it are metallic friction-rollers, inserted in the edge of the stile g, at or near the middle of its length, and on each side of rack Zl, so that the apex of the roller shall project outwardly about one-sixteenth of an inch beyond the edge of stile g, and the points of the cogs of rack Z i, which are fair with the edge of the stile. The flanges k h of the rollers i 2', and in which their axles play, extend over. the face of the stileg from three-eighths to fodr-eighths of an inch, and are about one-sixteenth of an inch thick upon the face of the stile, at the point of the axles, tapering therefrom in every direction, so as to present but one point of impact with the bead of the frame. These flanges appear on both sides of the stile Rack Z Z is similarly inserted in the right-hand edges of the stiles of both the lower and upper flights, and rollers are similarly inserted in both the right and left edges of the stiles of the lower and upper flights.

In fig. 3, P P represent an eccentric about one-half inch thick and three-quarters inch in diameter. d In the centre of its thicknoss, and around its circumference, there is a groove about seven-eighths inch deep and about one-quarter inch wide, with flanges on each side of about one-eighth inch wide. In this groove is fitted the bandj, and firmly riveted at its united ends to the plate 20, so as to shpport eccentric P 1?, and within and about which band the latter moves through a small segment of the circle formed by the band j. The alternate and circular motion of this eccentric is indicated on its disk by circular arrows, and the length of the movement by a slot in band extending from a to v, at the latter of which is a stout pin inserted in eccentric P P, and which operates as a stop to its motion, preventing tongue 2 from being drawn through plate w aty. wis an eccentric arm, firmly fastened to eccentric P P at itsuuder circumference. In the centre of the upper end of this arm is a notch, through which bandj passes and moves. At the lower end of arm a: is also a notch to receive the tenon of tongue 2, which tcnon is securely fastened to the arm a: by the rivetq, and yet so as to allow a free motion of the tenon in the notch- Tongue z is metallic, attached as already described, and adapted to pass freely through mortise 3 of plate it, and to enter between the cogs of rack Z l, which is shown transparently in same figure in stile g, in a section of sashfg d. In the eccentric PP is a square mortise, as shown at s 8, extending quite through its thickness. 0 o is a metallic shaft, which, near the centre of its length, is,.for a distance vary ing according'to thickness of the sash and beads, four-square, as shown at r. The further end, not shown in drawing, is round. The near end is also round, as seen at o 0, with a small shoulder behind escutcheon 1b, to prevent shaft from being drawn out too far. n is the escutcheon, with its screws t t t, by which it is secured to the window-frame, as seen in figrl. k is a metallic knob, either circular or of other shape, attached to shaft 0 o, by which it is pulled out or shut up, or turned laterally right or left. it is a transparent showing of the position of knob is, when the shaft is fully drawn out. o o-represcntthe screws which secure plate 20 to the windowLframe, as seen in fig. 1. It is to be observed that tongue z inclin es'at an angle corresponding with that of cogs in rack Z Z, and that the locker, as seen at fig. 3, is duplicated by another similar in every respect, except that shaft 0 o,'escutcheon n, and knob is are' common to both. 1 i

. The lockers are inserted in window-frame asseen at w, fig. 1. Its duplicate is directly opposite, under the right-hand edge of stile g, of upper flight of sash. They are exactly in range with each other, soithat tongue 2 of each shall enter racks Z Z at a point directly'in the centre of, both meeting-rails of the upper and lower-flights of sash, and mortise 818 of each eccentric be also in range, so that the four-square section of shaft 0 0 shall meet no impediment in passing from one eccentric to the other.

sash is poised and locked, and on account offthcLrncI" without sprin To op erateithe sash poiser and locker,' .suppcse both flights of sash imposition in window-frame, and closed and locked, as seen at fig; '1. Now, pull out knob-'lc as faras it will comet]; this brings the locking-arrangement in connection with lowcrflight of sashd e turnknob laterally, so' that' its lower circumference shall move away from the sash. This moves eccentricarms, fig, 3, from g to f, thus" ithdrawing tongue .2 through mor tise y of plate w, so that the extremepoiiitofthetongue is fair with the platexAt the same time pin 1:, in eccentric P P, movesalong the slotinband'j te shoulcler u, where the r notion of-the-eccentric is arrested, and tongue 2 prevented from being drawn'entirelygthrough plate-1,01 The lower jjflighlt ofsash is now unlocked, and canbe elevated or depressed by the hand to any point;'fandipoised rid'loc'kedhtl ere, by simply turning the lower circumference of knob'k toward the sash.- This,inoves"eccentrlc xlfrom j to q, protrudes tongue 2 through mortise y of plate 20, and inserts itv between the c ogs. t',ra"clt'Zlatitlie same inclination with the cogs,.so thatlthe l g e g s'andtongue, the sash is held so firmly, I gs, by the force of gravity, that nt oflshaking- 'orjostling the sash, so far front loosing it, only makesit tighter. A g

' To operate the upper flight, push in knob lc to"escutcheon n, as seeuati fi 1. This leaves the lower flight of sash lockedat any point, and'connects the four-squaresectio'n of shaft o o, fig. 3, withthe other eccentric, which is connected with the upper flight of sash by means of its fown'arm and tongue, Now, turn knob is laterally to I the right or left, as before, to unlock onlockthe sash,'at the same timewith the hand, depressing oreievatingit to any dcsiredpoint. It is to be observed that when thejfour square section of shaft 0 o is in one eccentric, the

'round part of theshaft is in theother eccentricysolthat one can be operated without moving the other, and I either one oi otheror both of the flights of sash can'be lockedorunlocked at'the same time.

.What I claim as my invention,'a'nd desire to secureLettersPatent, is following: 1. The arrangementof the rack'Z-ZQin-fig. 2, wit h inclined cogs, in connection with an inclined tongue, e,infig;3.'

v: '2. The combinatio nd arrangement of the locker, as' s'e en' at'fi 3,vi'z, the eccentric .B P, with its pin i),

, it'sarm Zr, its square niortisc'is s, andits'groove for the reception of bandfjfthe band 7', with its slot up, and combination of said band with plate wf'the tongue z, and its combination-with arm a: and plate 10, through mortise y,

3. I also claim the peculiar'arrangementof the four-square sectionr of shaft 0 o, in connection with its circular ends, as seen at fig. 3 j

Witnesses T. G. CONNOLLY,-:=.

WM. H. SUTHERLAND.

Gnonen A. N OLEN- 

